Pyrex is a brand name for a type of borosilicate glass. Borosilicate glass is a type of glass that is known for its durability and resistance to heat. This makes it a popular choice for cookware, including microwave-safe cookware.

What is Pyrex Made Of?
Pyrex is made of borosilicate glass. Borosilicate glass is a type of glass that is made from sand, soda ash, and boric oxide. The boric oxide is what gives Pyrex its high resistance to heat.
Is Pyrex Microwave Safe?
Yes, Pyrex is microwave safe. Pyrex is made of a type of glass that is resistant to heat, so it can withstand the high temperatures of a microwave oven. However, it is not recommended to microwave Pyrex for long periods of time because the glass can become hot and break. Avoid microwaving Pyrex that has been exposed to extreme heat, such as from a stovetop or oven.
What are the Benefits of Using Pyrex in the Microwave?
There are several benefits to using Pyrex in the microwave:
- Durability: Pyrex is a very durable type of glass. It is resistant to heat and scratching, so it can withstand the rigors of microwave cooking.
- Transparency: Pyrex is a clear type of glass, so you can easily see the food that you are cooking. This makes it easy to monitor the cooking process and prevent the food from overcooking.
- Microwave-safe: Pyrex is microwave-safe, so you can cook food in it directly in the microwave oven. This saves time and energy.
What are the Risks of Using Pyrex in the Microwave?
There are a few risks associated with using Pyrex in the microwave:
- Thermal shock: Pyrex can be damaged by thermal shock, which is a sudden change in temperature. This can happen if you put a hot Pyrex dish in the microwave oven or if you microwave a cold Pyrex dish for too long.
- Breakage: Pyrex is a durable type of glass, but it can still break if it is dropped or hit. This is especially true if the glass is hot.
- Leaching: Pyrex can leach lead into food if it is not properly manufactured. Lead is a toxic metal that can be harmful to human health.
How to Use Pyrex in the Microwave Safely
To use Pyrex in the microwave safely, follow these tips:
- Use a microwave-safe Pyrex dish. Not all Pyrex dishes are microwave-safe, so check the label before using it in the microwave.
- Place the Pyrex dish in the microwave oven carefully. Avoid hitting or dropping the dish.
- Microwave the food for the appropriate amount of time. Do not microwave the food for too long, or the glass may become hot and break.
- Let the Pyrex dish cool down before handling it. The dish will be hot after it has been microwaved, so let it cool down before handling it to avoid burns.
What are Some Creative Uses for Pyrex in the Microwave?
Pyrex can be used for a variety of cooking tasks in the microwave, including:
- Reheating food: Pyrex is a great choice for reheating leftovers in the microwave. The glass is resistant to heat, so it will not get too hot and burn the food.
- Cooking food: Pyrex can also be used to cook food in the microwave. For example, you can cook rice, pasta, and vegetables in a Pyrex dish.
- Baking: Pyrex can even be used to bake in the microwave. For example, you can make a cake or a brownie in a Pyrex dish.
- Create a “microwavable” Pyrex can be used to create a “microwavable” by putting a microwave-safe lid on the Pyrex dish. This allows you to cook food in the microwave without using a separate dish to cover the food.
Tips and Tricks for Using Pyrex in the Microwave
Here are a few tips and tricks for using Pyrex in the microwave:
- Use a microwave-safe lid to prevent splatters. A microwave-safe lid will help to keep food from splattering inside the microwave oven.
- Place the Pyrex dish on a microwave-safe plate. This will help to prevent the dish from sliding around in the microwave oven.
- Microwave the food on a low power setting. This will help to prevent the glass from getting too hot and breaking.
- Cook the food in short intervals. This will help to prevent the food from overcooking.
- Let the Pyrex dish cool down before handling it. The dish will be hot after it has been microwaved, so let it cool down before handling it to avoid burns.
Common Mistakes to Avoid When Using Pyrex in the Microwave
Here are a few common mistakes to avoid when using Pyrex in the microwave:
- Do not microwave a hot Pyrex dish. This can cause the glass to crack or break.
- Do not microwave a cold Pyrex dish for too long. This can also cause the glass to crack or break.
- Do not use a metal spoon or fork to stir food in a Pyrex dish. This can scratch the glass and make it more likely to break.
- Do not put a Pyrex dish in the microwave oven without a lid. This can cause food to splatter inside the microwave oven.
Conclusion
Pyrex is a versatile and durable type of glass that is perfect for microwave cooking. By following the tips and tricks in this article, you can use Pyrex safely and effectively in your microwave oven.